Multiple-output Switched Mode Power Supplies (SMPSs)
... normally depict extremely bad power quality indices at the utility interface such as total harmonic distortion of the input current being more than 80%, power factor being lower than 0.5 and output voltage regulation being very poor. They violate the limits of harmonic emissions set by international ...
... normally depict extremely bad power quality indices at the utility interface such as total harmonic distortion of the input current being more than 80%, power factor being lower than 0.5 and output voltage regulation being very poor. They violate the limits of harmonic emissions set by international ...
Physics 750 teachers title
... through the LRC circuit. Use the Voltage Sensor to measure the voltage drop (potential difference) across the resistor in the circuit. The amplitude of the current depends on the impedance in the circuit, which varies with frequency. Calculate the theoretical resonant frequency for your circuit. Use ...
... through the LRC circuit. Use the Voltage Sensor to measure the voltage drop (potential difference) across the resistor in the circuit. The amplitude of the current depends on the impedance in the circuit, which varies with frequency. Calculate the theoretical resonant frequency for your circuit. Use ...
Application of Multifrequency Pulsing in Switching
... controlling bridge. Two arms of the bridge are formed by the high windings of the output transformer OT. The third arm is an ant[resonant circuit consisting of retardation coil L and capacitor C connected in parallel, while the fburth arm is a resistance R having a value slightly less than the imped ...
... controlling bridge. Two arms of the bridge are formed by the high windings of the output transformer OT. The third arm is an ant[resonant circuit consisting of retardation coil L and capacitor C connected in parallel, while the fburth arm is a resistance R having a value slightly less than the imped ...
90 Insulation Class Standards established by the National Electrical
... Thousands of circular mils. A method for designating the crosssectional area of a conductor; especially conductors larger than AWG 4/0 (four aught). One mill is equal to 1/1000 of an inch. Circular mil area is the diameter (in mils) of a circular conductor squared. 1 MCM is 1000 circular mils (also ...
... Thousands of circular mils. A method for designating the crosssectional area of a conductor; especially conductors larger than AWG 4/0 (four aught). One mill is equal to 1/1000 of an inch. Circular mil area is the diameter (in mils) of a circular conductor squared. 1 MCM is 1000 circular mils (also ...
Quiz - ScienceScene
... Which explains why a balloon rubbed with wool sticks to a wall? A) like charges attract B) rubber is always attracted to walls C) unlike charges attract D) the air in the balloon is attracted to the wall E) some strands of the wool adhere to the balloon and stick to the wall ...
... Which explains why a balloon rubbed with wool sticks to a wall? A) like charges attract B) rubber is always attracted to walls C) unlike charges attract D) the air in the balloon is attracted to the wall E) some strands of the wool adhere to the balloon and stick to the wall ...
Period 4 - Pipeline Corrosion Control
... caused by the volts drop in the measuring circuit and allowed increased voltages to be obtained, because they dramatically reduced the amount of current flowing. The solid state electronics of today's meters only require a tiny amount of current to make a reading and the resistance in the measuring ...
... caused by the volts drop in the measuring circuit and allowed increased voltages to be obtained, because they dramatically reduced the amount of current flowing. The solid state electronics of today's meters only require a tiny amount of current to make a reading and the resistance in the measuring ...
A Si/SiGe BiCMOS Mixer with 3rd-Order Nonlinearity Cancellation for
... Figure 1 shows the model used for analysis on the nonlinearity of the differential CE circuit. To simplify the analysis, the following assumptions were made, similar to that in [2]. The collector current is only a function of the baseemitter voltage. The Early effect is ignored, because the output r ...
... Figure 1 shows the model used for analysis on the nonlinearity of the differential CE circuit. To simplify the analysis, the following assumptions were made, similar to that in [2]. The collector current is only a function of the baseemitter voltage. The Early effect is ignored, because the output r ...
KST55/ 56 PNP Epitaxial Silicon Transistor
... DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when p ...
... DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when p ...
SC.912.P.10.15 - Investigate and explain the relationships among
... This manipulative will help the students to learn about the physics of resistance in a wire. The electrical resistance of a wire would be expected to be greater for a longer wire, less for a wire of larger cross sectional area, and would be expected to depend upon the material out of which the wire ...
... This manipulative will help the students to learn about the physics of resistance in a wire. The electrical resistance of a wire would be expected to be greater for a longer wire, less for a wire of larger cross sectional area, and would be expected to depend upon the material out of which the wire ...
5B45 数据手册DataSheet 下载
... measurement systems, standard data acquisition systems, programmable controllers, analog recorders and dedicated control systems. The 5 B series modules are ideally suited to applications where monitoring and control of temperature, pressure, flow, rotation and other analog signals are required. ...
... measurement systems, standard data acquisition systems, programmable controllers, analog recorders and dedicated control systems. The 5 B series modules are ideally suited to applications where monitoring and control of temperature, pressure, flow, rotation and other analog signals are required. ...
1550nm CATV EDFA: WE-1550
... of 1550nm Optical Fiber Communication System. It is mainly used in Long-distance Optical Fiber Transmission of Television Image signal, Digital Television Signal, Telephone Voice Signal Data (or Compressed Data) Signal. 2. Low-noise Pump Laser of famous brand, import high performance Erbium-doped Fi ...
... of 1550nm Optical Fiber Communication System. It is mainly used in Long-distance Optical Fiber Transmission of Television Image signal, Digital Television Signal, Telephone Voice Signal Data (or Compressed Data) Signal. 2. Low-noise Pump Laser of famous brand, import high performance Erbium-doped Fi ...
Parallel Resistance, Series/Parallel Circuit Combinations, and
... r Calculate the power consumption for each resistor and for the equivalent circuit resistance. Enter your results in a new column of your previous data table. (Don’t forget to show how you did your power calculation and include units wherever appropriate … including in the data table.) [12!pts]22 r ...
... r Calculate the power consumption for each resistor and for the equivalent circuit resistance. Enter your results in a new column of your previous data table. (Don’t forget to show how you did your power calculation and include units wherever appropriate … including in the data table.) [12!pts]22 r ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.